Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 306 · 40 questions

What you do (Float or sink?): 1. Fill a tub with water on a towel, with an adult nearby. 2. Guess “float” or “sink” for each object and write it in a table. 3. Gently place each object on the water and write what happens. 4. Press the sinking clay into a boat shape and try again; wipe up spills.

1. 1.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
2. 2.🌊 What pushes a floating cork upward? (a) the tub (b) the cork itself (c) the air above (d) the water
3. 3.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
4. 4.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we measure it (c) we change it
5. 5.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to keep children safe (d) to win a prize
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) turmeric powder (c) a towel for spills (d) a results table
7. 7.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
8. 8.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a balloon (d) a results table
9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the amount of clay”? (a) we measure it (b) we change it (c) we keep it the same
10. 10.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it sinks (c) it dissolves (d) it still floats
11. 11.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
12. 12.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) an ice cube (b) an ice-cream stick (c) a ping-pong ball (d) a pebble
15. 15.🛟 Does a cork float or sink in water? (a) floats (b) sinks
16. 16.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
17. 17.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a mirror (d) a tub of water
18. 18.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) whether it floats (c) the tub of water
20. 20.🔍 Which is the odd one out? (a) an iron nail (b) a feather (c) a coin (d) a ball of clay
21. 21.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) False (b) True
22. 22.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is kept the same. (a) True (b) False
23. 23.🛟 Which of these floats on water? (a) a ball of clay (b) a steel spoon (c) an ice-cream stick (d) a coin
24. 24.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) whether it floats (c) the kind of clay
25. 25.🛟 Does a coin float or sink in water? (a) floats (b) sinks
26. 26.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
27. 27.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a little shaking (d) a few ice cubes
28. 28.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) False (b) True
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the kind of clay”? (a) we keep it the same (b) we change it (c) we measure it
30. 30.🛟 Which of these floats on water? (a) a coin (b) a piece of thermocol (c) a pebble (d) a glass marble
31. 31.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a magnet (c) a battery cell (d) a results table
32. 32.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a balloon (c) turmeric powder (d) a tub of water
33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) the tub of water (c) whether it floats (d) the shape of the clay
34. 34.True or false: an empty capped bottle sinks in water. (a) False (b) True
35. 35.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
36. 36.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
37. 37.🔍 Which is the odd one out? (a) a ball of clay (b) an iron nail (c) a steel spoon (d) a ping-pong ball
38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) False (b) True
39. 39.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is magnetic (c) water is sticky (d) ice is less dense
40. 40.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) leave water on the floor (d) play near a deep pond

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